.::: Sample Access Database MariaDB via Backend Golang & Frontend using Lucee & PHP :::.

 

1. Sample for table pembelian

mkdir -p /opt/go-pembelian
cd /opt/go-pembelian

mkdir backend
cd backend

2. run mod & driver 

cd backend
go mod init pembelian-api
go get github.com/go-sql-driver/mysql

[root@teguhth-all go-pembelian]# cd backend
[root@teguhth-all backend]# go mod init pembelian-api
go: creating new go.mod: module pembelian-api
[root@teguhth-all backend]# ls
go.mod
[root@teguhth-all backend]# go get github.com/go-sql-driver/mysql
go: downloading github.com/go-sql-driver/mysql v1.9.3
go: downloading filippo.io/edwards25519 v1.1.0
go: added filippo.io/edwards25519 v1.1.0
go: added github.com/go-sql-driver/mysql v1.9.3

[root@teguhth-all backend]# pwd
/opt/go-pembelian/backend
[root@teguhth-all backend]# ls
go.mod  go.sum
[root@teguhth-all backend]#
 

.::: Move log_bin_basename (mysqlbinlogs) MariaDB / MySQL using symlink relink symbolic link :::.

 

A. capture before 

1.check mariadb version

2. check log_bin_basename 

SHOW VARIABLES WHERE Variable_name IN ('datadir','basedir','log_bin_basename');

 

3. check before move datadir 
 
B. move log_bin_basename 
 

.::: Move Datadir MariaDB / MySQL using symlink relink symbolic link :::.

 

A. capture before 

1. check mariadb version

2. check datadir 

SHOW VARIABLES WHERE Variable_name IN ('datadir','basedir');
SHOW VARIABLES LIKE 'log_bin_basename';
 

 

.::: Install MariaDB 10.11.x Using repo local cdrom ISO on Centos 9, Almalinux 9, Redhat 9 :::.

 

1. enable repolocal 

https://teguhth.blogspot.com/2026/02/enable-repo-local-using-cdrom-on-centos.html

2. download

mariadb archive 
https://archive.mariadb.org/mariadb-10.11/yum/almalinux9-amd64/rpms/

maxscale archive
https://dlm.mariadb.com/browse/mariadbmaxscale/24.02.7/yum/rhel/9/x86_64/
 

.::: Install Maxscale 24 Using repo local cdrom on Centos 9, Almalinux 9, Redhat 9 :::.

 

1. enable repolocal 

https://teguhth.blogspot.com/2026/02/enable-repo-local-using-cdrom-on-centos.html

2. download maxscale maxscale-24.02.7-1.rhel.9.x86_64.rpm

mariadb archive 
https://archive.mariadb.org/mariadb-10.11/yum/almalinux9-amd64/rpms/

maxscale archive
https://dlm.mariadb.com/browse/mariadbmaxscale/24.02.7/yum/rhel/9/x86_64/

[root@teguhth data]# pwd
/data
[root@teguhth data]# ls | grep -i maxscale
maxscale-24.02.7-1.rhel.9.x86_64.rpm
[root@teguhth data]#

.::: Enable Repo Local Using cdrom (ISO file) on Centos 9, Almalinux 9, Redhat 9 :::.

 

 

1. check iso/disk/rom 

lsblk

[root@teguhth ~]# lsblk
NAME               MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sr0                 11:0    1 12.4G  0 rom
nvme0n1            259:0    0   30G  0 disk
+-nvme0n1p1        259:1    0    1G  0 part /boot
+-nvme0n1p2        259:2    0   29G  0 part
  +-almalinux-root 253:0    0   27G  0 lvm  /
  +-almalinux-swap 253:1    0    2G  0 lvm  [SWAP]
[root@teguhth ~]#
 

mount -o loop rhel-server-6.6-x86_64-dvd.iso /mnt

 

.::: Install Golang 25 in Centos 9 :::.

 

1. download golang 

wget https://go.dev/dl/go1.25.7.linux-amd64.tar.gz

2. check after downlaod 

[root@teguhth-all golang]# wget https://go.dev/dl/go1.25.7.linux-amd64.tar.gz
--2026-02-09 15:59:22--  https://go.dev/dl/go1.25.7.linux-amd64.tar.gz
Resolving go.dev (go.dev)... 216.239.34.21, 216.239.38.21, 216.239.32.21, ...
Connecting to go.dev (go.dev)|216.239.34.21|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://dl.google.com/go/go1.25.7.linux-amd64.tar.gz [following]
--2026-02-09 15:59:22--  https://dl.google.com/go/go1.25.7.linux-amd64.tar.gz
Resolving dl.google.com (dl.google.com)... 74.125.24.136, 74.125.24.91, 74.125.24.190, ...
Connecting to dl.google.com (dl.google.com)|74.125.24.136|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 59768749 (57M) [application/x-gzip]
Saving to: ‘go1.25.7.linux-amd64.tar.gz’
 

.::: Sample Access Database MariaDB via Frontend & Backend using Lucee :::.

 

1. enable datasource 
 

2. backend 

http://10.10.10.90:8888/pembelian_api.cfm

[root@teguhth-all ROOT]# pwd
/opt/lucee/tomcat/webapps/ROOT
[root@teguhth-all ROOT]#
[root@teguhth-all ROOT]# cat pembelian_api.cfm
<cfquery name="qPembelian" datasource="dbteguhth">
 SELECT
        KODE_PEMBELIAN,
        KODE_BARANG,
        KODE_CUSTOMER,
        TANGGAL_PEMBELIAN,
        JUMLAH_PEMBELIAN
    FROM pembelian
</cfquery>

<cfcontent type="application/json">
<cfoutput>#serializeJSON(qPembelian)#</cfoutput>

[root@teguhth-all ROOT]#

.::: create Tools Migration from MongoDB to MariaDB using bash shell script nocsv :::.

  

1. sample data edb & mariadb

MySQL MariaDB
https://teguhth.blogspot.com/2019/04/study-kasus-praktis-belajar-query-mysql.html

MongoDB
https://teguhth.blogspot.com/2020/12/study-kasus-praktis-belajar-query.html

Install 
yum install jq -y

2. data server A & B 
server A mongodb
ip : 10.10.10.9
db : teguhth
port 27017
user : admin
password : admin

server B Mariadb
ip : 10.10.10.90
db : mariamongo
port 3306
user : admin
password : admin

buat script shell untuk migrasi dari server A mariadb to server B mongodb

3. run script migrasi 

migrasi_barang_mongo_to_mariadb_nocsv.sh
migrasi_customer_mongo_to_mariadb_nocsv.sh
migrasi_pasok_mongo_to_mariadb_nocsv.sh
migrasi_pembelian_mongo_to_mariadb_nocsv.sh
migrasi_suplier_mongo_to_mariadb_nocsv.sh

[root@teguhth-all nocsvmongo]# pwd
/data/migrasi/mongo-to-maria-and-reserve/nocsvmongo
[root@teguhth-all nocsvmongo]#
[root@teguhth-all nocsvmongo]# ls | grep _nocsv
migrasi_barang_mongo_to_mariadb_nocsv.sh
migrasi_customer_mongo_to_mariadb_nocsv.sh
migrasi_pasok_mongo_to_mariadb_nocsv.sh
migrasi_pembelian_mongo_to_mariadb_nocsv.sh
migrasi_suplier_mongo_to_mariadb_nocsv.sh
[root@teguhth-all nocsvmongo]#
 

4. result after migrasi 
 

5. script migrasi table barang 

[root@teguhth-all nocsvmongo]# pwd
/data/migrasi/mongo-to-maria-and-reserve/nocsvmongo
[root@teguhth-all nocsvmongo]#
[root@teguhth-all nocsvmongo]# cat migrasi_barang_mongo_to_mariadb_nocsv.sh
#!/bin/bash

########################################
# CONFIG
########################################

# MongoDB
MONGO_HOST="10.10.10.9"
MONGO_PORT="27017"
MONGO_DB="teguhth"
MONGO_USER="admin"
MONGO_PASS="admin"
MONGO_COLLECTION="barang"

# MariaDB
MARIA_HOST="10.10.10.90"
MARIA_PORT="3306"
MARIA_DB="mariamongo"
MARIA_USER="admin"
MARIA_PASS="admin"
MARIA_TABLE="barang"

########################################
# CREATE TABLE (optional)
########################################

echo "== Prepare MariaDB table =="

mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB" <<EOF

CREATE TABLE IF NOT EXISTS $MARIA_TABLE (
    KODE_BARANG CHAR(6) PRIMARY KEY,
    NAMA_BARANG VARCHAR(25),
    SATUAN_BARANG VARCHAR(20),
    STOK_BARANG DECIMAL(4)
);

EOF

########################################
# STREAM INSERT
########################################

echo "== MongoDB → MariaDB INSERT =="

mongoexport \
  --host "$MONGO_HOST" \
  --port "$MONGO_PORT" \
  -u "$MONGO_USER" \
  -p "$MONGO_PASS" \
  --authenticationDatabase admin \
  -d "$MONGO_DB" \
  -c "$MONGO_COLLECTION" \
  --type=json |
jq -r '

"REPLACE INTO '"$MARIA_TABLE"' VALUES (\"" +
.KODE_BARANG + "\",\"" +
.NAMA_BARANG + "\",\"" +
.SATUAN_BARANG + "\"," +
(.STOK_BARANG|tostring) +
");"

' |
mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB"

########################################
# DONE
########################################

echo "✅ Migrasi selesai — tanpa file CSV"

[root@teguhth-all nocsvmongo]#

6. script migrasi table suplier 

[root@teguhth-all nocsvmongo]# pwd
/data/migrasi/mongo-to-maria-and-reserve/nocsvmongo
[root@teguhth-all nocsvmongo]#
[root@teguhth-all nocsvmongo]# cat migrasi_suplier_mongo_to_mariadb_nocsv.sh
#!/bin/bash

########################################
# CONFIG
########################################

# MongoDB
MONGO_HOST="10.10.10.9"
MONGO_PORT="27017"
MONGO_DB="teguhth"
MONGO_USER="admin"
MONGO_PASS="admin"
MONGO_COLLECTION="suplier"

# MariaDB
MARIA_HOST="10.10.10.90"
MARIA_PORT="3306"
MARIA_DB="mariamongo"
MARIA_USER="admin"
MARIA_PASS="admin"
MARIA_TABLE="suplier"

########################################
# CREATE TABLE
########################################

echo "== Prepare MariaDB table suplier =="

mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB" <<EOF

CREATE TABLE IF NOT EXISTS $MARIA_TABLE (
  KODE_SUPLIER CHAR(5) NOT NULL,
  NAMA_SUPLIER VARCHAR(30),
  ALAMAT_SUPLIER VARCHAR(30),
  KOTA_SUPLIER VARCHAR(15),
  TELEPON_SUPLIER VARCHAR(15),
  PRIMARY KEY (KODE_SUPLIER)
);

EOF

########################################
# STREAM INSERT
########################################

echo "== MongoDB → MariaDB INSERT suplier =="

mongoexport \
  --host "$MONGO_HOST" \
  --port "$MONGO_PORT" \
  -u "$MONGO_USER" \
  -p "$MONGO_PASS" \
  --authenticationDatabase admin \
  -d "$MONGO_DB" \
  -c "$MONGO_COLLECTION" \
  --type=json |
jq -r '

"REPLACE INTO '"$MARIA_TABLE"' VALUES (\"" +
.KODE_SUPLIER + "\",\"" +
.NAMA_SUPLIER + "\",\"" +
.ALAMAT_SUPLIER + "\",\"" +
.KOTA_SUPLIER + "\",\"" +
.TELEPON_SUPLIER + "\");"

' |
mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB"

########################################
# DONE
########################################

echo "✅ Migrasi suplier selesai — tanpa CSV"

[root@teguhth-all nocsvmongo]#

7. script migrasi table customer 

[root@teguhth-all nocsvmongo]# pwd
/data/migrasi/mongo-to-maria-and-reserve/nocsvmongo
[root@teguhth-all nocsvmongo]#
[root@teguhth-all nocsvmongo]# cat migrasi_customer_mongo_to_mariadb_nocsv.sh
#!/bin/bash

########################################
# CONFIG
########################################

# MongoDB
MONGO_HOST="10.10.10.9"
MONGO_PORT="27017"
MONGO_DB="teguhth"
MONGO_USER="admin"
MONGO_PASS="admin"
MONGO_COLLECTION="customer"

# MariaDB
MARIA_HOST="10.10.10.90"
MARIA_PORT="3306"
MARIA_DB="mariamongo"
MARIA_USER="admin"
MARIA_PASS="admin"
MARIA_TABLE="customer"

########################################
# CREATE TABLE
########################################

echo "== Prepare MariaDB table customer =="

mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB" <<EOF

CREATE TABLE IF NOT EXISTS $MARIA_TABLE (
  KODE_CUSTOMER CHAR(6),
  NAMA_CUSTOMER VARCHAR(30),
  ALAMAT_CUSTOMER VARCHAR(30),
  KOTA_CUSTOMER VARCHAR(15),
  TELEPON_CUSTOMER VARCHAR(15),
  PRIMARY KEY (KODE_CUSTOMER)
);

EOF

########################################
# STREAM INSERT
########################################

echo "== MongoDB → MariaDB INSERT customer =="

mongoexport \
  --host "$MONGO_HOST" \
  --port "$MONGO_PORT" \
  -u "$MONGO_USER" \
  -p "$MONGO_PASS" \
  --authenticationDatabase admin \
  -d "$MONGO_DB" \
  -c "$MONGO_COLLECTION" \
  --type=json |
jq -r '

"REPLACE INTO '"$MARIA_TABLE"' VALUES (\"" +
.KODE_CUSTOMER + "\",\"" +
.NAMA_CUSTOMER + "\",\"" +
.ALAMAT_CUSTOMER + "\",\"" +
.KOTA_CUSTOMER + "\",\"" +
.TELEPON_CUSTOMER + "\");"

' |
mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB"

########################################
# DONE
########################################

echo "✅ Migrasi customer selesai — tanpa CSV"

[root@teguhth-all nocsvmongo]#

8. script migrasi table pasok 

[root@teguhth-all nocsvmongo]# pwd
/data/migrasi/mongo-to-maria-and-reserve/nocsvmongo
[root@teguhth-all nocsvmongo]#
[root@teguhth-all nocsvmongo]# cat migrasi_pasok_mongo_to_mariadb_nocsv.sh
#!/bin/bash

########################################
# CONFIG
########################################

# MongoDB
MONGO_HOST="10.10.10.9"
MONGO_PORT="27017"
MONGO_DB="teguhth"
MONGO_USER="admin"
MONGO_PASS="admin"
MONGO_COLLECTION="pasok"

# MariaDB
MARIA_HOST="10.10.10.90"
MARIA_PORT="3306"
MARIA_DB="mariamongo"
MARIA_USER="admin"
MARIA_PASS="admin"
MARIA_TABLE="pasok"

########################################
# CREATE TABLE
########################################

echo "== Prepare MariaDB table pasok =="

mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB" <<EOF

CREATE TABLE IF NOT EXISTS $MARIA_TABLE (
  KODE_PASOK CHAR(10),
  KODE_BARANG CHAR(6),
  KODE_SUPLIER CHAR(5),
  TANGGAL_PASOK DATE,
  JUMLAH_PASOK DECIMAL(4),
  PRIMARY KEY (KODE_PASOK, KODE_BARANG, KODE_SUPLIER),
  FOREIGN KEY (KODE_BARANG) REFERENCES barang(KODE_BARANG),
  FOREIGN KEY (KODE_SUPLIER) REFERENCES suplier(KODE_SUPLIER)
);

EOF

########################################
# STREAM INSERT WITH DATE FIX
########################################

echo "== MongoDB → MariaDB INSERT pasok =="

mongoexport \
  --host "$MONGO_HOST" \
  --port "$MONGO_PORT" \
  -u "$MONGO_USER" \
  -p "$MONGO_PASS" \
  --authenticationDatabase admin \
  -d "$MONGO_DB" \
  -c "$MONGO_COLLECTION" \
  --type=json |

jq -r '

def month:
  ascii_downcase |
  {jan:"01",feb:"02",mar:"03",apr:"04",may:"05",jun:"06",
   jul:"07",aug:"08",sep:"09",oct:"10",nov:"11",dec:"12"}[.];

def pad2:
  tostring | if length==1 then "0"+. else . end;

def fixdate:
  capture("(?<d>\\d+)-(?<m>[A-Za-z]+)-(?<y>\\d+)") as $x
  | "20\($x.y)-\($x.m|month)-\($x.d|pad2)";

"REPLACE INTO '"$MARIA_TABLE"' VALUES (\"" +
.KODE_PASOK + "\",\"" +
.KODE_BARANG + "\",\"" +
.KODE_SUPLIER + "\",\"" +
(.TANGGAL_PASOK|fixdate) + "\"," +
(.JUMLAH_PASOK|tostring) +
");"

' |

mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB"

########################################
# DONE
########################################

echo "✅ Migrasi pasok selesai — tanggal sudah dikonversi"

[root@teguhth-all nocsvmongo]#

9. script migrasi table pembelian 

[root@teguhth-all nocsvmongo]# pwd
/data/migrasi/mongo-to-maria-and-reserve/nocsvmongo
[root@teguhth-all nocsvmongo]#
[root@teguhth-all nocsvmongo]# cat migrasi_pembelian_mongo_to_mariadb_nocsv.sh
#!/bin/bash

########################################
# CONFIG
########################################

# MongoDB
MONGO_HOST="10.10.10.9"
MONGO_PORT="27017"
MONGO_DB="teguhth"
MONGO_USER="admin"
MONGO_PASS="admin"
MONGO_COLLECTION="pembelian"

# MariaDB
MARIA_HOST="10.10.10.90"
MARIA_PORT="3306"
MARIA_DB="mariamongo"
MARIA_USER="admin"
MARIA_PASS="admin"
MARIA_TABLE="pembelian"

########################################
# CREATE TABLE
########################################

echo "== Prepare MariaDB table pembelian =="

mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB" <<EOF

CREATE TABLE IF NOT EXISTS $MARIA_TABLE (
  KODE_PEMBELIAN CHAR(10),
  KODE_BARANG CHAR(6),
  KODE_CUSTOMER CHAR(6),
  TANGGAL_PEMBELIAN DATE,
  JUMLAH_PEMBELIAN DECIMAL(4),
  PRIMARY KEY (KODE_PEMBELIAN, KODE_BARANG, KODE_CUSTOMER),
  FOREIGN KEY (KODE_BARANG) REFERENCES barang(KODE_BARANG),
  FOREIGN KEY (KODE_CUSTOMER) REFERENCES customer(KODE_CUSTOMER)
);

EOF

########################################
# STREAM INSERT + DATE FIX
########################################

echo "== MongoDB → MariaDB INSERT pembelian =="

mongoexport \
  --host "$MONGO_HOST" \
  --port "$MONGO_PORT" \
  -u "$MONGO_USER" \
  -p "$MONGO_PASS" \
  --authenticationDatabase admin \
  -d "$MONGO_DB" \
  -c "$MONGO_COLLECTION" \
  --type=json |

jq -r '

def month:
  ascii_downcase |
  {jan:"01",feb:"02",mar:"03",apr:"04",may:"05",jun:"06",
   jul:"07",aug:"08",sep:"09",oct:"10",nov:"11",dec:"12"}[.];

def pad2:
  tostring | if length==1 then "0"+. else . end;

def fixdate:
  capture("(?<d>\\d+)-(?<m>[A-Za-z]+)-(?<y>\\d+)") as $x
  | "20\($x.y)-\($x.m|month)-\($x.d|pad2)";

"REPLACE INTO '"$MARIA_TABLE"' VALUES (\"" +
.KODE_PEMBELIAN + "\",\"" +
.KODE_BARANG + "\",\"" +
.KODE_CUSTOMER + "\",\"" +
(.TANGGAL_PEMBELIAN|fixdate) + "\"," +
(.JUMLAH_PEMBELIAN|tostring) +
");"

' |

mariadb -h "$MARIA_HOST" -P "$MARIA_PORT" \
-u "$MARIA_USER" -p"$MARIA_PASS" "$MARIA_DB"

########################################
# DONE
########################################

echo "✅ Migrasi pembelian selesai — tanggal sudah dikonversi"

[root@teguhth-all nocsvmongo]#

.::: create Tools Migration from MariaDB to MongoDB using bash shell script using insert & no csv :::.

   

correlation with https://teguhth.blogspot.com/2025/12/create-tools-migration-from-mongodb-to.html

1. data migration server A Maria to server B mongo
server A Mariadb
ip : 10.10.10.90
db : teguhth
port 3306
user : admin
password : admin

server B mongodb
ip : 10.10.10.9
db : mariadbsample
port 27017
user : admin
password : admin

buat script shell untuk migrasi dari server A maria to server B mongo 

db.barang.find();

db.barang.drop();

db.suplier.find();

db.suplier.drop();

db.customer.find();

db.customer.drop();

db.pasok.find();

db.pasok.drop();

db.pembelian.find();

db.pembelian.drop();
 

.::: create Tools Migration from SQL Server MSSQL to MariaDB using bash shell script using insert & NoCSV :::.

 

correlation with https://teguhth.blogspot.com/2024/01/install-configure-odbcinstini-odbc-for.html

1. sample data mssql & mariadb

MySQL MariaDB
https://teguhth.blogspot.com/2019/04/study-kasus-praktis-belajar-query-mysql.html

MSSQL
https://teguhth.blogspot.com/2019/04/study-kasus-praktis-belajar-query.html

2. data server A & B 
server A sql server
ip : 10.10.10.7
db : teguhth
schema : dbo
port 1433
user : admin 
password : admin11!!

server B Mariadb
ip : 10.10.10.90
db : teguhthsql
port 3306
user : admin
password : admin

mysql -h 10.10.10.90 -uadmin -p --skip-ssl

buat script shell untuk migrasi dari server A mssql to server B 
 

.::: create Tools Migration from MariaDB to PostgreSQL using bash shell script (no csv):::.

  

correlation https://teguhth.blogspot.com/2025/12/create-tools-migration-from-postgresql.html

1. sample data edb & mariadb

MySQL MariaDB
https://teguhth.blogspot.com/2019/04/study-kasus-praktis-belajar-query-mysql.html

PostgreSQL
https://teguhth.blogspot.com/2019/09/study-kasus-praktis-belajar-query.html

2. data server A & B 

server A Mariadb
ip : 10.10.10.9
db : teguhth
port 3306
user : admin
password : admin

server B Postgres
ip : 10.10.10.90
db : mariaedb
port 5432
user : admin
password : admin
 

.::: Script backup Daily MariaDB Windows :::.

  

1. check
SHOW VARIABLES LIKE 'datadir';
SHOW VARIABLES LIKE 'basedir';

C:\Windows\system32>mariadb -uroot -proot
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 10.11.11-MariaDB mariadb.org binary distribution

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> SHOW VARIABLES LIKE 'datadir';
+---------------+--------------------------------------+
| Variable_name | Value                                |
+---------------+--------------------------------------+
| datadir       | C:\Program Files\MariaDB 10.11\data\ |
+---------------+--------------------------------------+
1 row in set (0.001 sec)

MariaDB [(none)]> SHOW VARIABLES LIKE 'basedir';
+---------------+---------------------------------+
| Variable_name | Value                           |
+---------------+---------------------------------+
| basedir       | C:\Program Files\MariaDB 10.11\ |
+---------------+---------------------------------+
1 row in set (0.001 sec)

MariaDB [(none)]>